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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 972 · 40 sums
TalentJR

The trick (Anurupyena): Top row: a³, a²b, ab², b³ (each term is the one before × b ÷ a). Under the two middle terms write double of them, and add: a³ | 3a²b | 3ab² | b³. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.42³ =
  2. 2.38³ =
  3. 3.74³ =
  4. 4.12³ =
  5. 5.89³ =
  6. 6.87³ =
  7. 7.94³ =
  8. 8.61³ =
  9. 9.54³ =
  10. 10.41³ =
  11. 11.77³ =
  12. 12.34³ =
  13. 13.61³ =
  14. 14.12³ =
  15. 15.13³ =
  16. 16.29³ =
  17. 17.33³ =
  18. 18.58³ =
  19. 19.34³ =
  20. 20.71³ =
  21. 21.21³ =
  22. 22.57³ =
  23. 23.72³ =
  24. 24.61³ =
  25. 25.73³ =
  26. 26.43³ =
  27. 27.47³ =
  28. 28.44³ =
  29. 29.11³ =
  30. 30.12³ =
  31. 31.91³ =
  32. 32.12³ =
  33. 33.84³ =
  34. 34.31³ =
  35. 35.57³ =
  36. 36.13³ =
  37. 37.28³ =
  38. 38.92³ =
  39. 39.32³ =
  40. 40.83³ =

Answer key

  1. 74088
  2. 54872
  3. 405224
  4. 1728
  5. 704969
  6. 658503
  7. 830584
  8. 226981
  9. 157464
  10. 68921
  11. 456533
  12. 39304
  13. 226981
  14. 1728
  15. 2197
  16. 24389
  17. 35937
  18. 195112
  19. 39304
  20. 357911
  21. 9261
  22. 185193
  23. 373248
  24. 226981
  25. 389017
  26. 79507
  27. 103823
  28. 85184
  29. 1331
  30. 1728
  31. 753571
  32. 1728
  33. 592704
  34. 29791
  35. 185193
  36. 2197
  37. 21952
  38. 778688
  39. 32768
  40. 571787

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